| Abstract [eng] |
Many people experience high levels of stress and posttraumatic stress disorder symptoms during their lifetime. Although effective evidence-based interventions have been developed, not all people respond to them well. As a viable alternative, mindfulness-based interventions have recently received attention. In addition, internet-based interventions have become particularly relevant, given the barriers to providing psychological support. Although research in this area is growing, there is still a knowledge gap: there is a lack of evidence on the efficacy of these interventions in the context of high levels of stress and complex posttraumatic stress disorder, a new diagnostic category included in the 11th revision of the International Classification of Diseases, and there is lack of research that follows modern scientific standards. The aim of this dissertation was to develop two mindfulness-based internet-delivered interventions for two adult samples - healthcare staff experiencing high levels of stress and young adults with posttraumatic stress disorders symptoms - and to evaluate the efficacy of these interventions. The dissertation is based on four international scientific publications and presents research results conducted at the Center for Psychotraumatology, Institute of Psychology, Vilnius University, between 2019 and 2023. The efficacy results are discussed in the context of other empirical studies and theory; practical implications are reviewed. |
